Cadillac Catera and Cimarron Forum Discussion, Smoke from oil cap and very noisy lifters in Past Cadillac Vehicle Discussion; I purchased a 2000 Catera which had a bad running engine and had not been run for 2 years. I ...
I purchased a 2000 Catera which had a bad running engine and had not been run for 2 years. I found out that the 2 intake valves on cylinder 1 were bent. I ordered a new head set and 2 intake valves and put the engine back together. The car starts fine but misses slightly when at idle i don't have all the small black pipes connected as I can't find the one which goes to the silver box behind the passenger side head.
Anyway, the car runs ok but the lifters are very noisy. I have run the engine for about 20 minutes with fresh oil and it has not got any quieter. Should I try a engine additive to try and quieten them? the car sounds like a diesel.
Also when I remove the oil fill cap it chugs smoke out like a steam train. It does not blow any smoke out of the exhaust and there is no oil in the coolant.